from flask import current_app as app
from flask import Blueprint,request,make_response
from db import db1

from utils.myfile import myf

from io import BytesIO
from xlrd import open_workbook
from urllib.parse import quote
import xlsxwriter
import datetime
import mimetypes

import os

bp_company = Blueprint('company',__name__)

@bp_company.route('/test')
async def test():
    str = "请求ip:"+request.remote_addr+',请求的url:'+request.url+'中的错误信息,'+'请求的方法:'+request.method+'\n'
    app.logger.error(str)
    return "hello word"


# 上传excel 并导入数据库
@bp_company.route('/upload',methods=['POST'])
def upload():
    # 获取文件
    file = request.files['file']
    newname = myf.rename(file.filename)
    # 上传文件
    file.save(os.path.join('./static/files/'+newname))
    # 打开文件读取
    name = './static/files/'+newname
    bk = open_workbook(name,encoding_override='utf8')
    sh = bk.sheets()[0]
    nrows = sh.nrows
    ncols = sh.ncols
    for i in range(2,nrows):
        row_date = sh.row_values(i)
        for j in range(0,ncols):
            print(row_date[j])
    return 'ok'

    # 封装数据写入数据库


# excel 导出
@bp_company.route('/download', methods=["GET", "POST"])
def download():
    # 实例化二进制数据
    out = BytesIO()
    # 创建一个Excel实例
    workbook = xlsxwriter.Workbook(out)
    # 添加一个sheet，add_worksheet()，默认"Sheet1"，可自定义命名，add_worksheet("资产列表")
    table = workbook.add_worksheet()
    # table.write(行, 列, 字段名)
    # 行、列从 0 开始计数
    # 字段命名根据每个人使用情况而定，插入数据部分也是
    table.write(0, 0, "资产编号")
    table.write(0, 1, "资产名称")

    workbook.close()
    filename = quote("资产列表_{}.xlsx".format(datetime.datetime.now().strftime("%Y%m%d%H%M%S")))
    file = make_response(out.getvalue())
    out.close()
    mime_type = mimetypes.guess_type('%s.xlsx' % filename)[0]
    file.headers['Content-Type'] = mime_type
    file.headers["Cache-Control"] = "no-cache"
    file.headers['Content-Disposition'] = "attachment; filename*=utf-8''{}".format(filename)
    return file

